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Finding the Fourth Proportional to 144,903.90, 217,420.65 and 51,476.70

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Solution

The fourth proportional to 144,903.90, 217,420.65 and 51,476.70 is: 77,238.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,903.90 : 217,420.65 = 51,476.70 : x
  2. Step 2: Convert to fraction form
    144,903.90/217,420.65 = 51,476.70/x
  3. Step 3: Cross multiply
    144,903.90x = 217,420.65 × 51,476.70
  4. Step 4: Simplify right side
    144,903.90x = 11,192,097,573.86
  5. Step 5: Solve for x
    x = 11,192,097,573.86/144,903.90
  6. Step 6: Final answer
    x = 77,238.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.